Sulopenem

Sulopenem (CP-70429) is an orally active, parenteral penem antibiotic with broad-spectrum activities against Gram-positive and Gram-negative bacteria. Sulopenem has the potential for urinary tract infections and intra-abdominal infections treatment. Sulopenem is inactive against Pseudomonas aeruginosa and Xanthomonas maltophilia^[1][2][3]. IC50 & Target: MIC: 0.015-0.12 μg/mL (E. coli)^[1] In Vitro: Sulopenem has the potential for uncomplicated and complicated urinary tract infections and intra-abdominal infections treatment, including multidrug-resistant (MDR) infections and infections attributable to quinolone-nonsusceptible and/or extended-spectrum β-lactamase (ESBL)-producing Gram-negative bacilli^[1].
Sulopenem inhibits the growth of most isolates of aerobic and anaerobic Gram-positive and Gram-negative bacteria, including methicillin-susceptible Staphylococcus aureus, Streptococcus pneumoniae (penicillin-susceptible and -resistant isolates), group A and B β-hemolytic streptococci, Listeria monocytogenes, Enterobacteriaceae, Haemophilus influenzae, and Moraxella catarrhalis but excluding P. aeruginosa and Stenotrophomonas maltophilia, at a concentration of ≤1 μg/mL^[1]. In Vivo: The protective effects of Sulopenem in murine experimental systemic infections are superior to those of Imipenem/Cilastatin. In murine experimental mixed infection with Escherichia coli and Bacteroides fragilis, Sulopenem has lower ED₅₀. In guinea pigs experimental lung infection with Klebsiella pneumoniae, Sulopenem is more effective than CZON or Cefotiam^[3].